Lead-pencil.



J. A. MULVEY.

LEAD PENCIL.

APPLICATION YILED OOT.7, 1903'.

NO MODEL.

Wi i

Drafisman.

PATENTED MAR. 8, 1904. I

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l/vi hummus 5 Sheath and is slidably mounted thereon.

JOHN. A. MTTLVEY, OF NEW YORIL N. Y.

LEAD-PENCIL.

SPECIFICATION forming part of Letters Patent N 0. 754,333, dated March8, 1904.

Application filed October 7, 1903.

To all w/wm it may concern.-

Be it known that I, JOHN A. MULVEY, acitizen of the UnitedStates,residing at New York, in the county of New York and State of NewYork, have invented new and usefullmprovements in Lead-Pencils, of whichthe following is a specification.

My invention relates to new and useful improvements in lead-pencils; andits object is to provide a pencil of simple construction havingadjustable lead which can be moved a desired distance from the point ofthe pencil so as to obviate the necessity of sharpening the same.

The invention consists in providing a sheath having a longitudinallyextending passage therethrough which communicates with alongitudinally-extending slot formed in one side of the sheath. Aeasing, preferably formed of paper, is mounted upon the sheath and has aconcentric tubular portion arranged longitudinally therein, and withinthis tubular portion is secured the lead of the pencil. A web connectsthe tubular portion with the body of the casing and is slidably mountedin the slot in the sheath, and therefore when the casing is movedlongitudinally upon the sheath the lead will be carried therewith andprojected a desired distance toward the end of the sheath.

The invention also consists in the further novel construction andcombination of parts hereinafter more fully described and claimed, andillustrated in the accompanyingdrawings, showing the preferred form ofmy invention, and in which Figure 1 is an elevation of a pencilconstruct ed in accordance with my invention. Fig. 2 is a detail view ofthe sheath, and Fig. 3 is a similar view of the casing and showing thelead secured thereto.

Referring to the figures by numerals of reference, 1 is a sheath havinga longitudinallyextending passage 2 therethrough, said passagecommunicating with alongitudinally-extending slot 3. This slot extendsfrom one end of the sheath to the other and is of sufii cient width topermit a web L to slide therein. This web is preferably formed of paperand is integral with a casing 5, which incloses the Serial No. 176,120-(No model.)

tube 6 is formed at the inner edge of the web and extends longitudinallyof the casing and concentric thereto. This tube is equal in diameter tothe passage 2 and is adapted to inclose a strip of lead 7 orothersuitable writing material, to which it is glued.

In assembling the parts herein described the lead 7 is inserted withinthe tube 6, and saidv tube is then slid longitudinally into the passage2 and the web 4 into the slot 3. The casing 5 will inclose the sheathand extends approximately from one end to the other thereof. The pencilis first sharpened, as ordinarily; but after the lead has been worn andit becomes necessary to again expose it for writing purposes the casing5 is slid longitudinally upon the sheath and carries the lead therewith.This operation can be repeated until all of the lead has been used, whena new strip can be placed within the sheath.

It will be seen that the pencil is very simple and inexpensive inconstruction and obviates the necessity of sharpening the same, as whereordinary pencils are employed.

In the foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing any of the advantages thereof, and I therefore reserve theright to make such changes as fairly fall within the scope of myinvention.

Having thus described the invention, what is claimed as new is l. Apencil comprising a sheath having a longitudinally-extending passagetherethrough, and a longitudinally-extending slot communicating with thepassage, a casing slidably mounted upon the sheath, a tube integraltherewith and slidably mounted within the passage,

a web integral with the tube and casing and slidably mounted within theslot, and a strip of writing material within the tube and adapted to becarried thereby.

2. In a pencil, the combination with a sheath having a longitudinallyextending passage therethrough, and a longitudinally-extending slotcommunicating with the passage; of a casing slidably mounted upon thesheath and projecting into the slot and passage, and a strip 1 ofwriting material inclosed and adapted to be carried by the casing.

3. In a pencil, the combination with a sheath having a passage extendinglongitudinally therethrough, and a longitudinally-extending slotcommunicating with the passage and extending from one end to the otherof the sheath; of a casing slidably mounted upon the sheath,

a tube inclosed thereby and integral therepresence of two Witnesses.

. JOHN A. MULVEY. Witnesses:

HOWARD THORNTON, WILLIAM J. WYGANT.

